JPH0397979A - Dyeing of yarn - Google Patents

Abstract

PURPOSE:To dye yarn in clear multiple color without staining a cellulose side by embroidering or combining woven or knit fabric of cotton, etc., with polyester yarn or cationic dyeable polyester yarn to give cloth, coating the cloth with a reducing agent-containing sizing, printing, depositing, subjecting to oxidation clearing and reduction clearing. CONSTITUTION:Woven or knit fabric of cotton or rayon is embroidered or combined with polyester yarn or cationic dyeable polyester yarn to give cloth, which is previously coated with a reducing agentcontaining sizing (e.g. acrylic copolymer), dried, then printed with disperse dye, deposited, preliminarily washed with a solution containing hydrogen peroxide, etc., the dye and the sizing stained in the cellulose side fiber are previously removed and then the fabric is subjected to ordinary reduction cleaning. Consequently, the polyester yarn or cationic dyeable polyester yarn can be dyed in clear multiple color into yarn capable of producing a unique colorful pattern including lacetone embroidery without staining the cellulose side fiber. Therefore, dyed cloth of unique multi-colored pattern can be manufactured.

Description

Detailed Description of the Invention (Industrial Field of Application) This invention relates to a method for dyeing textiles such as cotton, rayon, linen, etc., and particularly relates to a method for dyeing textiles such as cotton, rayon, hemp, etc. The former is PE thread,
The latter are referred to as CDP yarns), or PE yarns and CDP yarns are mixed into some of the warps or wefts during weaving, and a fabric containing PE yarns and CDP yarns is woven in a striped or lattice pattern. By changing the mixed fibers, it is possible, for example, to weave a fabric in which the fibers are freely mixed at regular intervals. Using this fabric, pre-treatment, printing,
By washing, only PE yarns and CDP yarns can be dyed without contaminating cellulose fibers at all. This makes it possible to create dyed fabrics that are completely different from the current yarn-dyed stripes and gingham.Especially, if small and multicolored designs are used for printing, it is possible to make dyed fabrics that are completely different from the current yarn-dyed stripes and gingham. For example, it is possible to obtain a dyed cloth with a unique color pattern that has never been seen before (with several colors adjacent to each other).

(Prior art) For dyeing cellulose fibers such as cotton, rayon, linen, etc., reactive dyes, direct dyes, and dyes are used. Using gnoto dye, PE%CD
P fibers are dyed with disperse dyes, cationic dyes, etc. In addition, when dyeing a blended or interwoven fabric of 1m cellulose fiber and PE or CDP fiber, dyeing is performed twice using the dyeing yield and dyeing conditions of each yarn, but at this time, contamination of different types of fibers is an unavoidable problem. It is. Especially PE, CDP using disperse dye
When dyeing A fibers, cellulose fibers are highly contaminated, and the contamination cannot be removed even with ordinary reduction cleaning (hereinafter referred to as R.C). contamination can be removed, but at the same time there is a drawback that the dye density of PE fibers decreases. 2. To cover this drawback, cellulose fibers are dyed a slightly darker color than the contaminated tortoise to hide the contamination. It has become In this way, the current technology does not contaminate the cellulose part at all, as contemplated by the present invention, and does not allow PE, CD, etc.
It is not possible to dye only P yarn in multiple colors.

(Problem to be solved by the invention) PE and CDP yarns are embroidered on cellulose fiber cloth, or PE and CDP yarns are mixed in the - section of warp and warp yarns, so that the entire cellulose fiber is contaminated. Kotona < PEXCDP
The aim is to provide a dyed cloth with a unique color pattern that has never been seen before, by printing only M-fibers in fine detail in multiple colors.

(Means for solving the problem) The basic processing method of this invention is explained below. (1) Pre-printing treatment In order to achieve the purpose of In order to prevent penetration of the dye, it is necessary to form a thin skin pattern on the fabric. Acrylic copolymers, alginated soda, guar gum, CMC, etc. are used as skin-forming agents. The concentration differs depending on each sizing agent, but in general it is about 0.1 to 5 9/i.In order to more completely prevent contamination of cellulose fibers, certain yuzu reducing agents, such as Bright RX-1, are recommended. (Product of Rakuto Kasei Kogyo Co., Ltd.) may be used in combination. Its concentration is 80-3 g/l
It is.

A mixture of these chemicals is used to create an absorbing liquid, and the aperture is squeezed to 80
~l O O%, l dip, 1 after nip, 1
Dry drying at 0 0'O x 2 minutes.

(2) Seal The Rokuin stamping method is hand print, mouth to ram machine pudding 1.
, automatic machine printing, rotary printing, transfer printing, etc. are used. It is preferable for the illustrations to be medium to small in size, and for the color scheme to be as multicolored as possible, it gives a sense of color.
You can get the same color tone on your hands.

Steam heat is 180-230"CX5-30 seconds for transfer printing, and 130" for other hand and machine printing.
HP steaming (moist heat method) for 20 minutes was missed. The HT method has the disadvantage that the decomposition of the adhesive is poor due to the high temperature, making it difficult to form a paste.

(3) RC treatment Prior to RC, it is necessary to remove the paste and dye that have partially contaminated the cellulose fibers. For this purpose, it is effective to use a peroxide-based desizing agent that has good heat resistance and excellent scouring and bleaching effects. Oxidizing agents suitable for this purpose include hydrogen peroxide, sodium percarbonate, sodium perborate, and urea peroxide. In addition, there are commercially available products such as Lactogen KWC and Lactogen ES (both manufactured by Rakuto Kasei Kogyo Co., Ltd.), and as a combined auxiliary agent, a nonionic surfactant such as alkylallylpo IJ 1-tel is most suitable.
bri, I-1ostapal SF (Hoechst)
It is good to use . The amount used varies depending on the drawing of the fabric, the blending rate, the degree of contamination of the required dye concentration, but the effective oxygen amount per liquid is 0.0 1 to 0.2%, PH
is carried out in the range of 9 to 11. With a combination of these drugs, 90
'CX 2 Process for 0-30 minutes.

(4) The type and amount of alkaline agent used in reduction cleaning RC are important factors. Caustic soda is the most suitable alkaline agent to be used for this purpose, and the concentration depends on the type of cellulose fiber and the amount of PE yarn. It varies depending on the blending ratio and the dyeing density of PE and CDP yarns, but generally it is 0. 5 to 1 g/l (NaOH
(solid equivalent). Furthermore, in order to prevent the pH from increasing, an alkaline agent other than caustic soda may be used in combination or alone. Examples of these alkaline agents include sodium silicate, sodium phosphate, sodium carbonate, and condensed sodium phosphate. The specific recipe for this RC sorbing is to add 1 to 2 yuan of hydrosulfite, sodium sulfite, sodium bisulfite, and thiourea dioxide to 1 to 8 g/IHostapal SF 2 vl as a reducing bleach together with the above alkaline agent. Process at 80°C for 10 to 20 minutes. After washing with hot water at 70℃
Perform IO minutes, wash with water, and dry.

(Example 1) Fabric: No. 40 cotton broadcloth, desizing, scouring and bleaching cloth (embossed)
(Warp: 138, Weft: 72) Embroidery thread: 60 denier polyester thread, 3 strands twisted This sample was processed under the following conditions.

Processing conditions: Pad patch method 0 printing pre-treatment 1 5 V1 0 drying Dry 100°C x 2 minutes 0 printing Paper color transfer (Dainippon Sketch Noon Co., Ltd.) 2 0 0 'O x 8 0 seconds OR/ C pretreatment (bath ratio 1:10) 90'O X 80 minutes 0°C soaping (bath ratio 1:80)
pal SF 2 Vl 2 Vl 80°C x 20 minutes Hot water washing 8 0°C There wasn't any.

company') 1 5 9/l1 dip
1 nip pick up 80%0 dry
Drying: Dry 100°C x 2 minutes O stamp Printing: Hand print 0 Steam heat 180°C x 20 minutes Moist heat VC pretreatment (bath ratio 1:80) Sublimation test results of PE yarn: JIS L-0879 B No. 3-4 Class C No. 3
Grade (Example 2) Fabric: Cotton cloth No. 30 single yarn No. 736 single yarn (Push warp 72
When weaving a book (book, 69 wefts), polyester threads were inserted into the warp at intervals of 3c11 in a width of 02α, and this was used as a sample fabric.

Processing conditions: Pa. Sodobatch method 0 printing pretreatment 90℃ x 30 minutes O fl/Q sorbing (bath ratio 1:aO) 80℃
× 20 minutes 80°C

Sublimation test results for PE yarn: JiS L-0879 No. B 3-4 grade C No. 3
Class inventor: Nobuetsu Kane, Danga I4, Okubo-cho, Uji-shi, Kyoto

Claims (1)

[Claims] Polyester thread or cationically dyeable polyester thread is embroidered or blended with cotton, rayon, or hemp woven or knitted fabric, and after applying a sizing agent containing a reducing agent to this fabric, printing, By pre-cleaning this with hydrogen peroxide or its derivatives and then performing normal reduction cleaning, it is possible to dye a single thread in vivid multicolors without contaminating the cellulose fibers. A method of dyeing thread that is characterized by the creation of unique colors and patterns, including tonal embroidery.